Operation
pH 3310
32
ba75802e02
12/2008
4.4.4
Settings for pH and ORP measurements
Overview
The following settings are possible for pH and ORP measurements:
z
Resolution
z
Calibration interval
z
Buffers for calibration
z
Unit of the temperature
z
Automatic stability control
z
Unit for slope
z
Calibration record
(display)
Settings
The settings are made in the measuring menu of the pH/ORP
measurement. To open the settings, activate the relevant measuring
window in the measured value display and press the
<ENTER>
key
shortly. After completing the settings, switch to the measured value
display with
<M>
.
Menu item
Possible
setting
Description
Calibration
/
Calibration record
-
Displays the calibration
record of the last calibration.
Calibration
/
Buffer
TEC
NIST/DIN
ConCal
...
Buffer sets to be used for pH
calibration.
More buffers and details,
see section 4.4.5.
Calibration
/
One
point calibration
Yes
No
Rapid calibration with 1
buffer
Calibration
/
Calibration interval
1 ... 999 d
Calibration interval
for the
pH electrode (in days).
The meter reminds you to
calibrate regularly by the
flashing sensor symbol in
the measuring window.
Calibration
/
Unit for
slope
mV/pH
%
Unit of the slope.
The % display refers to the
Nernst slope of
-59.16 mV/pH (100 x
determined slope/Nernst
slope).
Man. temperature
-25 ... +130 °C
Entry of the manually
determined temperature.
For measurements without
temperature sensor only.